Nerve Fibers, MyelinatedRanvier's NodesNerve FibersRana esculentaMyelin SheathSciatic NervePeripheral NervesNeural ConductionAxonsSaxitoxinOptic NerveDentin SensitivityHistological TechniquesAnuraRana pipiensSural NerveSpinal Nerve RootsSodiumSchwann CellsTetraethylammonium CompoundsAction PotentialsMembrane PotentialsTetrodotoxinIon ChannelsMicroscopy, ElectronNerve DegenerationCell Membrane PermeabilityPotassiumCell CountNerve RegenerationNerve Fibers, UnmyelinatedDemyelinating DiseasesNeurons, AfferentNerve EndingsTibial NerveDental PulpOptic Nerve DiseasesCesiumRetinal Ganglion CellsDietary FiberMuscle Fibers, SkeletalPeripheral Nerve InjuriesNerve CrushMedian NerveNerve BlockOptic DiskElectric StimulationCochlear NerveUlnar NerveFacial NerveTooth RootTomography, Optical CoherenceModels, NeurologicalSodium ChannelsSpinal NervesPeripheral Nervous System DiseasesCatsNeuronsMechanoreceptorsTrigeminal NerveUbiquitin ThiolesteraseSensory Receptor CellsOphthalmic NerveNerve TissueTime FactorsElectrophysiologyNerve Growth FactorsFemoral NerveNeurofilament ProteinsRadial NerveGanglia, SpinalMineral FibersMandibular NervePotassium ChannelsCalcitonin Gene-Related PeptideGlossopharyngeal NerveAdrenergic FibersGlaucomaNerve Growth FactorSpinal CordAfferent PathwaysKineticsWallerian DegenerationPhrenic NerveMuscle Fibers, Slow-TwitchMuscle Fibers, Fast-TwitchMotor NeuronsNociceptorsNerve Compression SyndromesSkinVestibulocochlear NerveImmunohistochemistryVagus NerveCotton FiberMusclesOlfactory NervePeripheral Nervous SystemRats, Sprague-DawleySubstance PNeurons, Efferent